B. C · L B · L. C. · Lawrence C.
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | 
|---|---|---|---|---|
| Managing Salespeople | Hardcover | 978-0-205-13123-5 (0-205-13123-9) | 1992 | Ben M. Enis · John F. Tanner | 
| Managing Salespeople | Taschenbuch | 978-0-205-13406-9 (0-205-13406-8) | 1992 | etc. · Ben E. Enis · John F. Tanner | 
| Professional Selling | Hardcover | 978-0-205-14139-5 (0-205-14139-0) | 1993 | Ben M. Enis |